A door hinge is a mechanical bearing that connects a door to a frame, allowing it to rotate along a horizontal axis. The hinge is typically made of metal and consists of two plates, one mounted on the door and the other on the frame, that are connected by a pin, also known as a hinge pin, which allows the door to rotate. The hinge plates typically have knuckle, leaf and pin, which form the hinge mechanism. The hinge is designed to provide a pivot point for the door to rotate around and also to support the weight of the door. There are different types of hinges, each with its own unique design and application such as butt hinges, continuous hinges, spring hinges, pivot hinges, and more.

The history of door hinges dates back to ancient times, where simple wooden hinges were used in Egypt and Greece. In the Middle Ages, iron hinges were introduced in Europe, providing greater security than wooden ones. The Industrial Revolution brought mass production of door hinges, making them more affordable. During the 19th century, brass, bronze, and steel hinges were developed and became popular. Today, door hinges come in a wide range of materials and finishes, with different designs and mechanisms to suit different types of doors and usage.

What causes door hinges to sag?

Door hinges can sag due to a variety of reasons, including improper installation, a lack of maintenance, or wear and tear. The most common cause of sagging hinges is a loose or worn hinge pin, which can cause the door to lose its proper alignment and sag. Additionally, the door or door frame may have warped or twisted over time, or if the door is too heavy for the hinges, it will cause them to sag over time as well.

What type of door hinge is the strongest?

Continuous hinges, also known as piano hinges, are considered to be the strongest type of door hinge. They are made of one long piece of metal and are mounted continuously along the length of the door, providing more support and stability than traditional hinges. They are typically used in heavy-duty applications such as industrial and commercial doors, and are known for their durability and strength.

Why are door hinges mounted on the interior of the door?

Door hinges are typically mounted on the interior of the door for security reasons. When the hinges are on the inside, it makes it much harder for someone to remove the door from the outside, as the hinges are not visible and cannot be tampered with. This makes it harder for intruders to break in, and provides an extra layer of security for the building. Additionally, mounting the hinges on the inside can also help protect the hinges from the elements and prolong their lifespan.

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Door Hinges Guides
Browse through our curated Door Hinges Guides for additional categorizations, tips, details, variations, styles, and histories of Door Hinges. Guides provide additional insights into the unique properties and shared relationships between elements.
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3.46” | 88 mm (Leaf)
3.46” | 88 mm
.47” | 12 mm
Butt Door Hinge - Round
8.800
8.800
1.200
8755
https://p3d.in/e/oksXJ
GUIDE
3D
Butt Door Hinge - RoundPerspective view of a 3D model of a Butt Door Hinge (Round)Perspective view of a 3D model of a Butt Door Hinge (Round)
4.02” | 102 mm (Leaf)
3” | 76 mm
.55” | 14 mm
Butt Door Hinge - Square
10.200
7.600
1.400
8770
https://p3d.in/e/Y4NDI
GUIDE
3D
Butt Door Hinge - SquareView of a Butt Door Hinge (Square) in 3D available for downloadView of a Butt Door Hinge (Square) in 3D available for download
4.61” | 117 mm (Leaf)
3.54” | 90 mm
.55” | 14 mm
Flag Door Hinge
11.700
9.000
1.400
1180
https://p3d.in/e/dYzaP
GUIDE
3D
Flag Door Hinge3D model of a Flag Door Hinge viewed in perspective3D model of a Flag Door Hinge viewed in perspective
3.94” | 100 mm (Leaf)
2.72” | 69 mm
.47” | 12 mm
Hirline Door Hinge
10.000
6.900
1.200
450
https://p3d.in/e/xMvwI
GUIDE
3D
Hirline Door HingePerspective view of a 3D model of a Hirline Door HingePerspective view of a 3D model of a Hirline Door Hinge
3.94” | 100 mm (Leaf)
2.95” | 75 mm
.47” | 12 mm
Lift Off Door Hinge
10.000
7.500
1.200
1950
https://p3d.in/e/8ZRVX
GUIDE
3D
Lift Off Door HingeView of a Lift Off Door Hinge in 3D available for downloadView of a Lift Off Door Hinge in 3D available for download
4.5” | 114.5 mm (Open)
3.01” | 76.5 mm
.65” | 16.5 mm
Rising Butt Door Hinge
11.450
7.650
1.650
910
https://p3d.in/e/dzKc9
GUIDE
3D
Rising Butt Door Hinge3D model of a Rising Butt Door Hinge viewed in perspective3D model of a Rising Butt Door Hinge viewed in perspective
Door Hardware Locations
Diagram illustrating the locations and dimensions to locate Door Hardware

The location of door hardware should be measured and mounted within specified ranges of usability in order to fulfill the needs of users in specific situations. For accessibility, door hardware such as handles, pulls, locks, and latches should be able to be operated easily with one hand without requiring pinching, tightly gripping, or twisting the wrist.

Accessible reach ranges from a maximum of 54” (137 cm) to a lower point 15” (38 cm) from the floor.

The location of door hardware should be measured and mounted within specified ranges of usability in order to fulfill the needs of users in specific situations. For accessibility, door hardware such as should be able to be operated easily with one hand.

Accessible reach ranges from a maximum of 54” (137 cm) to a lower point 15” (38 cm) from the floor.

Door Hardware Locations
Height:
Width:
Length:
Depth:
Weight:
Area:

Lockset Strike: 40” | 102 cm
Pull or Push Bar: 42” | 107 cm
Pull Latches or Push Plates: 45” | 115 cm
Dead Lock Strike: 60” | 152 cm
Hinge (Bottom): Maximum 13” | 33 cm
Hinge (Top): Maximum 11.75” | 30 cm
Hinge (Middle): Center between top and bottom
Accessible Range: 15”-54” | 38-137 cm

Materials
Designer
Year

Drawings include:
Door Hardware Locations front elevation

Details & Downloads

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Hirline Door Hinge
Style and size comparison drawing of the Hirline Door Hinge compared to other door hinges

A Hirline Door Hinge, or concealed hinge, is a type of hinge that is designed to be hidden when the door is closed. It consists of two parts, a mounting plate that is attached to the cabinet or frame, and a hinge arm that is attached to the door. The unique design of a hidden hinge is that it is concealed inside the cabinet or frame when the door is closed, and it is not visible from the outside.

Hirline Hinges are commonly used in kitchen cabinetry and furniture, where a sleek and clean look is desired. They are also used in situations where the hinge needs to be hidden, such as in pocket doors or in sliding doors. They are typically made of steel or another strong metal, and the pin is usually made of steel or brass.

The Hirline Door Hinge has a leaf height of 3.94” (100 mm), open width of 2.72” (69 mm), and depth of .47” (12 mm). The overall pin height is 4.13” (105 mm) and the closed width is 1.85” (47 mm).

Set of scaled dimensioned drawings of the Hirline Door Hinge viewed from the front and side
A Hirline Door Hinge, or concealed hinge, is a type of hinge that is designed to be hidden when the door is closed. It consists of two parts, a mounting plate that is attached to the cabinet or frame, and a hinge arm that is attached to the door. The unique idea of a hidden hinge is that disappears.

The Hirline Door Hinge has a leaf height of 3.94” (100 mm), open width of 2.72” (69 mm), and depth of .47” (12 mm). The overall pin height is 4.13” (105 mm) and the closed width is 1.85” (47 mm).

Set of scaled dimensioned drawings of the Hirline Door Hinge viewed from the front and side
Hirline Door Hinge
Height:
3.94” | 100 mm (Leaf)
Width:
2.72” | 69 mm
Length:
Depth:
.47” | 12 mm
Height (Pin)
4.13” | 105 mm
Weight:
Area:

Width (Closed): 1.85” | 47 mm

Door Types: Interior, pocket, sliding, cabinetry, furniture

Materials
Steel or brass

Drawings include:

Hirline Door Hinge front elevation (open, closed), side, door sizes (front)

Details & Downloads

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Rising Butt Door Hinge
Comparison drawing of the Rising Butt Door Hinge compared to similar door hinge sizes and shapes

The Rising Butt Door Hinge is a type of hinge that allows the door to lift up and away from the frame as it is opened. It consists of two hinge plates and a pin that connects them. The hinge plates have a cam-shaped mechanism that lifts the door as it is opened, making it easy to clean and maintain. It is commonly used in commercial kitchens and industrial settings or where ease of maintenance is a concern. It is also used to prevent the door from dragging on the floor or threshold. They are typically made of steel and the pin is usually made of steel or brass.

The Rising Butt Door Hinge has an open height of 4.5” (114.5 mm), open width of 3.01” (76.5 mm), and depth of .65” (16.5 mm). The overall closed height is 4.02” (102 mm) and the closed width is 1.83” (46.5 mm).

Scaled set of drawings of the Rising Butt Door Hinge in front and side views with dimensions
The Rising Butt Door Hinge is a type of hinge that allows the door to lift up and away from the frame as it is opened. It consists of two hinge plates and a pin that connects them. The hinge plates have a cam-shaped mechanism that lifts the door as it is opened, making it easy to clean and maintain.

The Rising Butt Door Hinge has an open height of 4.5” (114.5 mm), open width of 3.01” (76.5 mm), and depth of .65” (16.5 mm). The overall closed height is 4.02” (102 mm) and the closed width is 1.83” (46.5 mm).

Scaled set of drawings of the Rising Butt Door Hinge in front and side views with dimensions
Rising Butt Door Hinge
Height:
4.5” | 114.5 mm (Open)
Width:
3.01” | 76.5 mm
Length:
Depth:
.65” | 16.5 mm
Height (Pin)
4.02” | 102 mm (Closed)
Weight:
Area:

Width (Closed): 1.83” | 46.5 mm

Door Types: Interior, industrial, kitchens

Materials
Steel or brass

Drawings include:

Rising Butt Door Hinge front elevation (open, closed), side, door sizes (front)

Details & Downloads

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Butt Door Hinge - Round
Style and size comparison drawing of the Butt Door Hinge (Round) compared to other door hinges

The Butt Door Hinge is a hinge consisting of two plates, one attached to the door and the other attached to the frame. These plates are connected by a pin, which allows the door to rotate around it. The hinge plates have knuckles that form the pivot point when the hinge is in use. The hinge is designed to mount on the surface of the door and frame. Because of its simple design, it has a low failure rate, making it a reliable and long-lasting hinge. However, it has a limited range of motion and is not suitable for doors that need to open at a wide angle or in both directions. They are commonly used for interior and exterior doors in residential and commercial settings.

The Butt Door Hinge (Round) has a leaf height of 3.46” (88 mm), open width of 3.46” (88 mm), and depth of .47” (12 mm). The overall pin height is 3.62” (92 mm) and the closed width is 1.97” (50 mm).

Set of scaled dimensioned drawings of the Butt Door Hinge (Round) viewed from the front and side
The Butt Door Hinge is a hinge consisting of two plates, one attached to the door and the other attached to the frame. These plates are connected by a pin, which allows the door to rotate around it. The hinge plates have knuckles that form the pivot point when the hinge is in use.

The Butt Door Hinge (Round) has a leaf height of 3.46” (88 mm), open width of 3.46” (88 mm), and depth of .47” (12 mm). The overall pin height is 3.62” (92 mm) and the closed width is 1.97” (50 mm).

Set of scaled dimensioned drawings of the Butt Door Hinge (Round) viewed from the front and side
Butt Door Hinge - Round
Height:
3.46” | 88 mm (Leaf)
Width:
3.46” | 88 mm
Length:
Depth:
.47” | 12 mm
Height (Pin)
3.62” | 92 mm
Weight:
Area:

Width (Closed): 1.97” | 50 mm

Door Types: Interior, exterior

Materials
Steel or brass

Drawings include:

Butt Door Hinge (Round) front elevation (open, closed), side, door sizes (front)

Details & Downloads

Downloads

2D Downloads

3D Downloads

Butt Door Hinge - Square
Scale illustration of the Butt Door Hinge (Square) compared to other door hinges

The Butt Door Hinge is a hinge consisting of two plates, one attached to the door and the other attached to the frame. These plates are connected by a pin, which allows the door to rotate around it. The hinge plates have knuckles that form the pivot point when the hinge is in use. The hinge is designed to mount on the surface of the door and frame. Because of its simple design, it has a low failure rate, making it a reliable and long-lasting hinge. However, it has a limited range of motion and is not suitable for doors that need to open at a wide angle or in both directions. They are commonly used for interior and exterior doors in residential and commercial settings.

The Butt Door Hinge (Square) has a leaf height of 4.02” (102 mm), open width of 3” (76 mm), and depth of .55” (14 mm). The overall pin height is 4.21” (107 mm) and the closed width is 1.77” (45 mm).

Pair of dimensioned illustrations of the Butt Door Hinge (Square) seen from the front and side elevation
The Butt Door Hinge is a hinge consisting of two plates, one attached to the door and the other attached to the frame. These plates are connected by a pin, which allows the door to rotate around it. The hinge plates have knuckles that form the pivot point when the hinge is in use.

The Butt Door Hinge (Square) has a leaf height of 4.02” (102 mm), open width of 3” (76 mm), and depth of .55” (14 mm). The overall pin height is 4.21” (107 mm) and the closed width is 1.77” (45 mm).

Pair of dimensioned illustrations of the Butt Door Hinge (Square) seen from the front and side elevation
Butt Door Hinge - Square
Height:
4.02” | 102 mm (Leaf)
Width:
3” | 76 mm
Length:
Depth:
.55” | 14 mm
Height (Pin)
4.21” | 107 mm
Weight:
Area:

Width (Closed): 1.77” | 45 mm

Door Types: Interior, exterior

Materials
Steel or brass

Drawings include:

Butt Door Hinge (Square) front elevation (open, closed), side, door sizes (front)

Details & Downloads

Downloads

2D Downloads

3D Downloads

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